System 636® Flue Gas Venting
A Complete System of Fully Certified Pipes, Fittings and Cements
IPEX offers System 636® Flue Gas Venting, a complete system of pipe fittings, termination kits and cements engineered and manufactured to strict quality, performance and dimensional standards.
Since the introduction of System 636®, IPEX has made numerous product-line additions to provide the most comprehensive product offering in the market. Renowned for its commitment to safety, System 636 has been a trusted choice for venting gas-fired condensing appliances.
Engineered Vent Termination Offerings
Offering multiple termination options such as the Low-Profile Termination Kit, Concentric Vent Kit (CVK), and the Universal Concentric Vent Kit (UCVK), provides flexibility to suit various installation needs and aesthetic preferences.
Common Flue Gas Venting Solutions
System 636® can support both in-line and back-to-back common venting installations through versatile fittings including Reducing Wyes and Double Reducing Wyes. Common venting allows multiple gas-fired appliances of the same brand and model to share a dedicated vent pipe for fresh air intake and exhaust, reducing the physical and economic footprint.
IPEX Engineered Specialty Fittings Designed for Common Venting
Engineered Backflow Valve: The first PVC and CPVC valve with an integrated in-line condensate drain that requires no priming for the drain to operate.
Cleanout Condensate Drain: Self-Draining ball check style condensate drain which requires no priming for the drain to operate.
In 2015, the CSA B149.1 Natural Gas and Propane Installation Code, was updated to allow common venting if all appliances are of the same type and manufacturer, certified for common vent configurations, and equipped with a flue backflow prevention valve.
Understanding PVC & CPVC Flue Gas Vent Pipes
System 636® is offered up to 12” in size, in two distinct materials, PVC & CPVC, each with a unique temperature rating. These venting systems are approved as Type BH vents and are designed for negative or positive pressure venting of gas-fired appliances.
PVC (Polyvinyl Chloride)
System 636® PVC carries a ULC S636 Class IIA certification and is certified for use up to and including 65°C (149ºF).
CPVC (Chlorinated Polyvinyl Chloride)
System 636® CPVC carries a ULC S636 Class IIB certification and is certified for use up to and including 90°C (194ºF).
Flue Vent Installation Training
IPEX recommends that installers receive formal training on System 636 every 3 years to ensure proper installation methods are utilized at all times. Unparalleled sales support, technical assistance, field training and refresher courses are all readily available from IPEX Sales Professionals across Canada.
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Specifications
SYSTEM DESCRIPTION
System 636® Flue Gas Venting is fully certified as a complete pipe, fittings, and cement system. The system is available in a PVC and a CPVC version.
The venting systems are approved as Type BH vents and designed for negative or positive pressure venting of gas-fired appliances.
Material
PVC
Maximum Flue Gas Temperature
65°C (149°F)
Pipe Size Ranges
1-1/2 – 6″ (38 – 150 mm)
Standards and Certifications
ULC S636
Applications
Non-combustible buildings, as detailed in clause 3.15.16 of the National Building Code (NBC)
Material
CPVC
Maximum Flue Gas Temperature
90°C (194°F)
Pipe Size Ranges
1-1/2 – 8″ (38 – 200 mm)
Standards and Certifications
ULC S636
ULC S102.2 Flame Spread Rating 10
ULC S102.2 Smoke Developed Classification 50
Applications
Non-combustible buildings, per National Building Code (NBC) classification
Air plenums (per NBC classification)
Buildings deemed to be high buildings (by NBC classification)